Granularity

Experts talk about how “finer granularity” results in small tasks with smaller code sizes and faster execution times. Professional programmer George Moromisato on Quora talks about granularity as “the ability to manipulate, display or specify small, discrete pieces as opposed to large groups,” using the example of firewall software that would target individual IP addresses instead of massive address blocks.

In general, IT professionals talking about granularity are talking about bringing a finer level of detail to technologies and computing or code work. This is the general lexical meaning of granularity, to make things into finer, and often more manageable pieces.